摘要
运用通用有限元程序ANSYS对某天气雷达站塔楼结构的静、动力特性进行了分析。讨论了利用ANSYS分析天气雷达站塔楼结构的建模特点和过程,并通过计算得到了雷达站塔楼在风力载荷作用下的变形,进一步分析了它的自振特性,计算得到了塔楼的前20阶频率和振型,计算结果与SATWE工程分析软件得到的计算结果以及结构设计值进行了比较,为结构设计的可靠性和可行性提供了参考依据。
The static and dynamic characteristics of a weather radar tower are analyzed by using the commercial finite element program ANSYS. The modeling character and process of the weather radar tower construction are discussed. The displacement under static loads were deduced . Modal analysis of the tower is also conducted, the first 20 frequencies and corresponding modal shapes are obtained. These result are compared with the results from engineering software SATWE and design values. It can offer reliable basis for structural design.
出处
《科学技术与工程》
2004年第9期778-781,共4页
Science Technology and Engineering
基金
国家自然科学基金(40172101)资助
关键词
雷达站塔楼
自振频率
振型
weather radar tower natural frequency modal shape
